| Debt - Long-term debt (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | 
|---|---|---|
| Debt | ||
| Long term debt | $ 693 | $ 977 | 
| Long-term debt, current portion | (564) | (831) | 
| Long-term debt, net of current portion | 129 | 146 | 
| Small Business Administration Loan | ||
| Debt | ||
| Long term debt | 151 | 171 | 
| Notes Payable | ||
| Debt | ||
| Long term debt | $ 542 | $ 806 | 
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available. 
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- Definition Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt classified as noncurrent. Excludes lease obligation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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